CN110793663A - Intelligent switch cabinet temperature monitoring system and method based on Internet of things technology - Google Patents
Intelligent switch cabinet temperature monitoring system and method based on Internet of things technology Download PDFInfo
- Publication number
- CN110793663A CN110793663A CN201911007210.2A CN201911007210A CN110793663A CN 110793663 A CN110793663 A CN 110793663A CN 201911007210 A CN201911007210 A CN 201911007210A CN 110793663 A CN110793663 A CN 110793663A
- Authority
- CN
- China
- Prior art keywords
- temperature
- fluorescence
- collector
- afterglow
- fluorescence sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
- G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
- G01K11/3213—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering using changes in luminescence, e.g. at the distal end of the fibres
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
Abstract
The invention provides an intelligent switch cabinet temperature monitoring system based on the technology of the Internet of things, which comprises a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system, wherein the fluorescence sensor is connected with the temperature collector; the temperature collector is used for sending incident light with fixed wavelength to the fluorescence sensor through the optical fiber, the fluorescence sensor generates fluorescence afterglow and transmits the fluorescence afterglow to the temperature collector, and the temperature collector calculates data according to the fluorescence afterglow to obtain the collection temperature corresponding to the fluorescence sensor; the liquid crystal display and the temperature collector are both provided with 485 interfaces and LORA wireless modules, the communication management machine is connected with the background management system, and the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
Description
Technical Field
The invention relates to the technical field of intelligent switch cabinet temperature monitoring, in particular to an intelligent switch cabinet temperature monitoring system and method based on the technology of the Internet of things.
Background
With the development of power systems, the power grid is larger and larger in scale, complex in structure and diversified in operation mode, and the problem of safe and stable operation of the power grid becomes more prominent. The power grid equipment is mainly concentrated in the transformer substation, wherein the switch cabinet is used as important electrical equipment of the transformer substation, bears the double functions of closing and disconnecting a power line and protecting the safety of a system, and plays a very important role in the safe and reliable operation of the transformer substation. As a widely used electric power device, the safety and reliability of the switch cabinet are also receiving more attention. According to incomplete statistics, the faults of the switch cabinets with different degrees occur in domestic power generation companies and electric power companies, and the reason is that effective monitoring on the switch cabinets is lacked.
Poor contact of electrically conductive junction will lead to the temperature increase of contact department in the high tension switchgear, and long-time poor contact can make the contact point produce the oxide film, not only hinders the electric current and passes through but also increase contact resistance, produces local high temperature, damages the cubical switchboard, causes huge economic loss. The safety hazards and economic losses resulting from these problems are immeasurable. The initial performance of the problems is local temperature rise, namely abnormal heating, so that the operation safety can be ensured by monitoring the temperature to predict and prevent the fault.
Disclosure of Invention
The invention aims to provide an intelligent switch cabinet temperature monitoring system and method based on the technology of the Internet of things, which are accurate in measurement, can realize information transmission in a long-distance and signal shielding situation, and can effectively prevent faults caused by temperature rise.
The invention provides the following technical scheme:
an intelligent switch cabinet temperature monitoring system and method based on the technology of the Internet of things comprise a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system;
the fluorescence sensor is connected with the temperature collector through an optical fiber, the temperature collector is used for sending incident light with a fixed wavelength to the fluorescence sensor through the optical fiber, the fluorescence sensor generates fluorescence afterglow and transmits the fluorescence afterglow to the temperature collector, and the temperature collector calculates data according to the fluorescence afterglow to obtain a collection temperature corresponding to the fluorescence sensor;
the liquid crystal display with the temperature collector all sets 485 interfaces and LORA wireless module, the communication manager with backstage management system connects, backstage management system is to the temperature data that obtain save and analysis to early warning temperature according to the configuration carries out the temperature and reports an emergency and asks for help or increased vigilance.
Preferably, the background management system can also provide a temperature change curve and a historical data report within a period of time.
Preferably, the functional relation between the fluorescence afterglow and time is
Wherein A is a constant coefficient; t is afterglow decay time; lp(T) is the fluorescence peak intensity at rest as a function of temperature T; τ (T), the afterglow decay time constant, i.e., the afterglow life, is also a function of temperature T, independent of light intensity.
An intelligent switch cabinet temperature monitoring method based on the Internet of things technology comprises a fluorescence sensor, a temperature collector, a liquid crystal display, a communication management machine and a background management system, and comprises the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, the temperature collector calculates data according to the fluorescence afterglow to obtain a collection temperature corresponding to the fluorescence sensor and sends the collection temperature to a liquid crystal display at regular time through a LORA wireless module;
s4, the liquid crystal display receives the temperature data transmitted by the temperature collector and displays the collected temperature on a human-computer interaction interface; meanwhile, the temperature data is forwarded to a background management system through a communication manager connected with the temperature data;
and S5, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
Preferably, the liquid crystal display screen is connected with the communication manager through a 485 interface.
An intelligent switch cabinet temperature monitoring method based on the Internet of things technology comprises a fluorescence sensor, a temperature collector, a liquid crystal display, a communication management machine and a background management system, and comprises the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, the temperature collector calculates data according to the fluorescence afterglow to obtain a collection temperature corresponding to the fluorescence sensor;
s4, the communication manager receives an instruction of the background management system and sends a polling command to the temperature collector, and the temperature collector responds and sends the collected temperature data to the liquid crystal display and the communication manager;
s5, the liquid crystal display receives the temperature data transmitted by the temperature collector and displays the collected temperature on a human-computer interaction interface; the communication manager receives the temperature data transmitted by the temperature collector and forwards the temperature data to the background management system;
and S6, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
Preferably, the temperature collector is connected with the liquid crystal display and the communication manager through 485 interfaces respectively.
An intelligent switch cabinet temperature monitoring method based on the Internet of things technology comprises a fluorescence sensor, a temperature collector, a liquid crystal display, a communication management machine and a background management system, and comprises the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, the temperature collector calculates data according to the fluorescence afterglow to obtain a collection temperature corresponding to the fluorescence sensor;
s4, the temperature collector transmits the collected temperature to a communication manager through a 485 interface, and the communication manager transmits the collected temperature to a background to display a temperature value;
and S5, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
The invention has the beneficial effects that:
1. the fluorescence sensor is used for measuring temperature, the temperature conversion relation is determined by a fluorescence life single value, and the influence of external conditions such as the change of the intensity of the excitation light source, the change of the optical fiber transmission efficiency and the coupling degree is avoided, so that the fluorescence life thermometry is more accurate than other thermometry;
2. an advanced LORA wireless transmission mode and a long-distance wireless module are adopted, so that the device can realize information transmission in long-distance and signal shielding occasions;
3. a more effective method is provided for the temperature self-diagnosis of the high-voltage switch cabinet, the fault caused by temperature rise can be effectively prevented, and the method has great popularization value;
4. the large-screen touch screen liquid crystal (matching) display is realized, and the human-computer interaction is more friendly.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a wireless transmission scheme of the present invention;
FIG. 2 is a block diagram of a cable transmission architecture of the present invention;
FIG. 3 is a fluorescence characteristic curve.
Detailed Description
As shown in fig. 1 to 3, an intelligent switch cabinet temperature monitoring system based on the internet of things technology includes a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system;
the temperature collector is used for sending incident light with fixed wavelength to the fluorescence sensor through the optical fiber, the fluorescence sensor generates fluorescence afterglow and transmits the fluorescence afterglow to the temperature collector, and the temperature collector calculates data according to the fluorescence afterglow to obtain the collection temperature corresponding to the fluorescence sensor;
specifically, for fluorescence fiber temperature measurement, when a luminescent material is irradiated by incident light with a certain wavelength, the luminescent material enters an excited state from a ground state after absorbing light energy, and is immediately de-excited to emit emergent light (the wavelength is usually in a visible light band) with the wavelength longer than that of the incident light, and once the incident light is removed, the luminescence phenomenon also immediately disappears, namely the emergent light disappears, and the emergent light with the property is called fluorescence;
from planck's theorem, when a light-emitting material receives incident light energy in any form, an energy level transition phenomenon occurs to electrons in the light-emitting material, and the energy level transition process is accompanied by emergent light with a wavelength λ, wherein:
In practice, we observe that not outgoing light of a certain fixed wavelength, but outgoing light with a wavelength in a certain band, mainly because of E2And E1Always in two energy bands, respectively. After the incident light is removed, the luminescent material still maintains the luminescence phenomenon for a period of time, and if the period of time is equal to the time (less than or equal to 10-6s) for completing energy level transition of electrons, the emergent light is called as fluorescence; if the time period is much longer than the time period for the electron to complete the energy level transition (usually 10-3s to 10s), the emitted light is called phosphorescence,
the luminescence of fluorescent substances generally follows stokes law, i.e. fluorescent substances can only be subjected to high energies (hv)2) Is excited to emit low energy (h v)1) That is, light having a short wavelength and a high frequency excites light having a long wavelength and a low frequency (λ)2＜λ1，ν2＞ν1). The mechanism of light emission of the fluorescent substance is: according to the molecular principle, rare earth doped oxides contain high-valence positive ions, ions are excited under the irradiation of high-energy rays (laser, ultraviolet rays and the like) and are transited from a ground state to an excited state, the excited state is unstable, the ions are transited from the excited state to a lower energy level, at the moment, the ions emit fluorescence energy to enable fluorescent substances to emit light, the light is called as fluorescence, and the fluorescence is usually located in a visible light band;
in a certain temperature range, regardless of fluorescent substances, the fluorescence lives of the fluorescent substances show a certain temperature dependence, and the fluorescence life temperature measurement principle is based on the temperature dependence,
when a fluorescent substance is irradiated with light, its internal electrons gain energy to transit from a ground state to an excited state, the fluorescent substance emits fluorescence by the emitted radiation energy returning from the excited state to the ground state, and the time for which fluorescence continues to be emitted after the light is removed depends on the lifetime of the excited state, which is called fluorescence lifetime, which has characteristics: the length of the fluorescence lifetime is determined by the temperature, and the fluorescence lifetime type temperature sensor is just a temperature sensor based on the characteristics;
some rare earth fluorescent materials emit visible linear spectra, i.e., fluorescence and its afterglow, after being irradiated and excited by excitation light. If a certain parameter of the fluorescence is modulated by temperature and their relationship is monotonous, the temperature can be measured by using the relationship. The intensity of the linear spectrum is influenced by the intensity of the excitation light source and the temperature of the fluorescent material, and if the intensity of the excitation light source remains constant, the intensity of the linear spectrum is a single-valued function of the temperature, and as time goes on, the lower the outside temperature is, the stronger the intensity of the linear spectrum is, and the slower the decay of the afterglow is. After the excitation spectrum is filtered by using the optical filter, the temperature can be solved by measuring the intensity of the emission spectrum line of the fluorescent afterglow. However, this measurement method requires stable excitation light source intensity and signal channel, and is difficult to implement, and thus is not basically adopted. In addition, the decay time constant of the afterglow is a single function of temperature.
According to the semiconductor theory, the decay and disappearance of afterglow is actually the quenching process of light, the increase of temperature enhances the strength of lattice vibration, and the enhancement of the strength of lattice vibration increases the number of molecules participating in absorption, and finally shortens the quenching process of light, so the temperature of the fluorescent material determines the speed of the quenching process of light, namely the size of a decay time constant. FIG. 3 is a fluorescence characteristic curve;
from FIG. 3, the intensity of the fluorescent afterglow is a function of the practice as follows:
wherein A is a constant coefficient; t is afterglow decay time; lp(T) is the fluorescence peak intensity at rest as a function of temperature T; τ (T), the afterglow decay time constant, i.e., the afterglow life, is also a function of temperature T, independent of light intensity.
Generally, the larger T is, the smaller tau (T) is, so that T can be solved as long as the value of tau (T) is measured;
therefore, the fluorescence sensor is used for measuring the temperature, the temperature conversion relation is determined by the single value of the fluorescence life, and the influence of external conditions such as the change of the intensity of the excitation light source, the change of the optical fiber transmission efficiency, the change of the coupling degree and the like is avoided, so that the fluorescence life thermometry is more accurate in measurement compared with other thermometry.
The liquid crystal display and the temperature collector are both provided with 485 interfaces and LORA wireless modules, the communication management machine is connected with the background management system, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature, and the background management system can also provide a temperature change curve and a historical data report within a period of time.
The first embodiment is as follows:
as shown in fig. 1, an intelligent switch cabinet temperature monitoring method based on the internet of things technology comprises a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system, and comprises the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, the temperature collector calculates the data according to the fluorescence afterglow to obtain the collection temperature corresponding to the fluorescence sensor and sends the collection temperature to the liquid crystal display at regular time through the LORA wireless module;
s4, the liquid crystal display receives the temperature data transmitted by the temperature collector, and displays the collected temperature on the human-computer interaction interface; meanwhile, the temperature data is forwarded to a background management system through a communication manager connected with the temperature data;
and S5, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
Specifically, the liquid crystal display screen is connected with the communication manager through a 485 interface.
Example two:
as shown in fig. 2, an intelligent switch cabinet temperature monitoring method based on the internet of things technology includes a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system, and includes the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, calculating the data according to the fluorescence afterglow by using a temperature collector to obtain a collecting temperature corresponding to the fluorescence sensor;
s4, the communication manager receives the instruction of the background management system and sends a polling command to the temperature collector, and the temperature collector responds and sends collected temperature data to the liquid crystal display and the communication manager;
s5, the liquid crystal display receives the temperature data transmitted by the temperature collector and displays the collected temperature on the man-machine interaction interface; the communication manager receives the temperature data transmitted by the temperature collector and forwards the temperature data to the background management system;
and S6, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
Specifically, the temperature collector is respectively connected with the liquid crystal display and the communication manager through 485 interfaces.
Example three:
an intelligent switch cabinet temperature monitoring method based on the Internet of things technology comprises a fluorescence sensor, a temperature collector, a liquid crystal display, a communication management machine and a background management system, and comprises the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, calculating the data according to the fluorescence afterglow by using a temperature collector to obtain a collecting temperature corresponding to the fluorescence sensor;
s4, the temperature collector transmits the collected temperature to the communication manager through the 485 interface, and the communication manager transmits the collected temperature to the background to display the temperature value;
and S5, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
The intelligent switch cabinet temperature monitoring system based on the Internet of things technology can realize transmission in a screen-free, wired and wireless mode, and adopts an advanced LORA wireless transmission mode and a long-distance wireless module, so that the device can realize information transmission in long-distance and signal shielding occasions; the method provides a more effective method for the temperature self-diagnosis of the high-voltage switch cabinet, can effectively prevent the fault caused by temperature rise, and has great popularization value.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An intelligent switch cabinet temperature monitoring system based on the technology of the Internet of things is characterized by comprising a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system;
the fluorescence sensor is connected with the temperature collector through an optical fiber, the temperature collector is used for sending incident light with a fixed wavelength to the fluorescence sensor through the optical fiber, the fluorescence sensor generates fluorescence afterglow and transmits the fluorescence afterglow to the temperature collector, and the temperature collector calculates data according to the fluorescence afterglow to obtain a collection temperature corresponding to the fluorescence sensor;
the liquid crystal display with the temperature collector all sets 485 interfaces and LORA wireless module, the communication manager with backstage management system connects, backstage management system is to the temperature data that obtain save and analysis to early warning temperature according to the configuration carries out the temperature and reports an emergency and asks for help or increased vigilance.
2. The intelligent switch cabinet temperature monitoring system based on the technology of the internet of things as claimed in claim 1, wherein the background management system can also provide a temperature change curve and a historical data report within a period of time.
3. The intelligent switch cabinet temperature monitoring system based on internet of things technology as claimed in claim 1, wherein the functional relation of fluorescence afterglow and time is
Wherein A is a constant coefficient; t is afterglow decay time; lp(T) is the fluorescence peak intensity at rest as a function of temperature T; τ (T), the afterglow decay time constant, i.e., the afterglow life, is also a function of temperature T, independent of light intensity.
4. The intelligent switch cabinet temperature monitoring method based on the Internet of things technology according to claim 1, comprising a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system, and is characterized by comprising the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, the temperature collector calculates data according to the fluorescence afterglow to obtain a collection temperature corresponding to the fluorescence sensor and sends the collection temperature to a liquid crystal display at regular time through a LORA wireless module;
s4, the liquid crystal display receives the temperature data transmitted by the temperature collector and displays the collected temperature on a human-computer interaction interface; meanwhile, the temperature data is forwarded to a background management system through a communication manager connected with the temperature data;
and S5, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
5. The intelligent switch cabinet temperature monitoring method based on the Internet of things technology as claimed in claim 4, wherein the liquid crystal display screen is connected with the communication manager through a 485 interface.
6. The intelligent switch cabinet temperature monitoring method based on the Internet of things technology according to claim 1, comprising a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system, and is characterized by comprising the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, the temperature collector calculates data according to the fluorescence afterglow to obtain a collection temperature corresponding to the fluorescence sensor;
s4, the communication manager receives an instruction of the background management system and sends a polling command to the temperature collector, and the temperature collector responds and sends the collected temperature data to the liquid crystal display and the communication manager;
s5, the liquid crystal display receives the temperature data transmitted by the temperature collector and displays the collected temperature on a human-computer interaction interface; the communication manager receives the temperature data transmitted by the temperature collector and forwards the temperature data to the background management system;
and S6, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
7. The intelligent switch cabinet temperature monitoring method based on the Internet of things technology as claimed in claim 6, wherein the temperature collector is respectively connected with the liquid crystal display and the communication manager through 485 interfaces.
8. The intelligent switch cabinet temperature monitoring method based on the Internet of things technology according to claim 1, comprising a fluorescence sensor, a temperature collector, a liquid crystal display, a communication manager and a background management system, and is characterized by comprising the following steps:
s1, installing the fluorescence sensor at contact points such as moving and static contacts in the switch cabinet and the like which are easy to generate temperature rise, and connecting the fluorescence sensor with a temperature collector through optical fibers;
s2, the temperature collector emits incident light with a fixed wavelength from an interface of the optical fiber and transmits the incident light to the fluorescence sensor through the optical fiber, the fluorescence sensor is irradiated and excited by the incident light to generate fluorescence afterglow, and the temperature collector receives the fluorescence afterglow;
s3, the temperature collector calculates data according to the fluorescence afterglow to obtain a collection temperature corresponding to the fluorescence sensor;
s4, the temperature collector transmits the collected temperature to a communication manager through a 485 interface, and the communication manager transmits the collected temperature to a background to display a temperature value;
and S5, the background management system stores and analyzes the acquired temperature data and gives a temperature alarm according to the configured early warning temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007210.2A CN110793663A (en) | 2019-10-22 | 2019-10-22 | Intelligent switch cabinet temperature monitoring system and method based on Internet of things technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007210.2A CN110793663A (en) | 2019-10-22 | 2019-10-22 | Intelligent switch cabinet temperature monitoring system and method based on Internet of things technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110793663A true CN110793663A (en) | 2020-02-14 |
Family
ID=69440901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911007210.2A Pending CN110793663A (en) | 2019-10-22 | 2019-10-22 | Intelligent switch cabinet temperature monitoring system and method based on Internet of things technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110793663A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111460887A (en) * | 2020-02-24 | 2020-07-28 | 柳州达迪通信技术股份有限公司 | Optical cable monitoring and analyzing system based on Internet of things |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655316A (en) * | 2013-11-21 | 2015-05-27 | 西安大昱光电科技有限公司 | Novel fluorescent optical fiber temperature testing system of switch cabinet |
| CN205210161U (en) * | 2015-10-30 | 2016-05-04 | 北京恒源利通电力技术有限公司 | Optical fiber temperature fault indicator |
| CN107300423A (en) * | 2017-08-22 | 2017-10-27 | 宁波智电电力科技有限公司 | Switch cubicle radio device for on-line monitoring temperature |
| CN107436202A (en) * | 2017-08-31 | 2017-12-05 | 浙江智充电力科技有限公司 | A kind of expansible fluorescence fiber temperature measurement instrument |
| CN206920037U (en) * | 2017-04-13 | 2018-01-23 | 开封光利高科实业有限责任公司 | A kind of ring main unit cable connector on-line temperature monitoring system |
| CN207114055U (en) * | 2017-08-31 | 2018-03-16 | 浙江智充电力科技有限公司 | A kind of expansible fluorescence fiber temperature measurement instrument |
| CN108645535A (en) * | 2018-07-31 | 2018-10-12 | 南京五石金传感技术有限公司 | A kind of fluorescence type etching machine temperature measuring equipment and measurement method |
| CN109029786A (en) * | 2018-08-23 | 2018-12-18 | 四川多成电力工程安装有限责任公司 | A kind of transformer winding internal temperature on-line monitoring system |
| CN208333701U (en) * | 2018-07-06 | 2019-01-04 | 南京华帅科技有限公司 | High-tension switch cabinet fluorescence type optical fiber temperature-measurement device |
| CN109459158A (en) * | 2018-12-27 | 2019-03-12 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of temperature measurement on-line type breaker and its temp measuring method |
| CN208704915U (en) * | 2018-09-04 | 2019-04-05 | 西安西变组件有限公司 | On-Line Monitor Device |
| CN110243495A (en) * | 2019-07-03 | 2019-09-17 | 上海达琪智能科技有限公司 | A kind of fluorescence optical fiber In-Line Temperature Measure System |
-
2019
- 2019-10-22 CN CN201911007210.2A patent/CN110793663A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655316A (en) * | 2013-11-21 | 2015-05-27 | 西安大昱光电科技有限公司 | Novel fluorescent optical fiber temperature testing system of switch cabinet |
| CN205210161U (en) * | 2015-10-30 | 2016-05-04 | 北京恒源利通电力技术有限公司 | Optical fiber temperature fault indicator |
| CN206920037U (en) * | 2017-04-13 | 2018-01-23 | 开封光利高科实业有限责任公司 | A kind of ring main unit cable connector on-line temperature monitoring system |
| CN107300423A (en) * | 2017-08-22 | 2017-10-27 | 宁波智电电力科技有限公司 | Switch cubicle radio device for on-line monitoring temperature |
| CN107436202A (en) * | 2017-08-31 | 2017-12-05 | 浙江智充电力科技有限公司 | A kind of expansible fluorescence fiber temperature measurement instrument |
| CN207114055U (en) * | 2017-08-31 | 2018-03-16 | 浙江智充电力科技有限公司 | A kind of expansible fluorescence fiber temperature measurement instrument |
| CN208333701U (en) * | 2018-07-06 | 2019-01-04 | 南京华帅科技有限公司 | High-tension switch cabinet fluorescence type optical fiber temperature-measurement device |
| CN108645535A (en) * | 2018-07-31 | 2018-10-12 | 南京五石金传感技术有限公司 | A kind of fluorescence type etching machine temperature measuring equipment and measurement method |
| CN109029786A (en) * | 2018-08-23 | 2018-12-18 | 四川多成电力工程安装有限责任公司 | A kind of transformer winding internal temperature on-line monitoring system |
| CN208704915U (en) * | 2018-09-04 | 2019-04-05 | 西安西变组件有限公司 | On-Line Monitor Device |
| CN109459158A (en) * | 2018-12-27 | 2019-03-12 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of temperature measurement on-line type breaker and its temp measuring method |
| CN110243495A (en) * | 2019-07-03 | 2019-09-17 | 上海达琪智能科技有限公司 | A kind of fluorescence optical fiber In-Line Temperature Measure System |
Non-Patent Citations (1)
| Title |
|---|
| 高云红 等编: "《智能仪器技术及工程实例设计》", 31 August 2015 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111460887A (en) * | 2020-02-24 | 2020-07-28 | 柳州达迪通信技术股份有限公司 | Optical cable monitoring and analyzing system based on Internet of things |
| CN111460887B (en) * | 2020-02-24 | 2020-12-29 | 柳州达迪通信技术股份有限公司 | Optical cable monitoring and analyzing system based on Internet of things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103606483B (en) | Vacuum degree monitoring device for high voltage vacuum circuit breaker arc extinguish chamber | |
| CN110988623B (en) | Partial discharge sensing detection system of quartz fluorescent optical fiber | |
| CN110793663A (en) | Intelligent switch cabinet temperature monitoring system and method based on Internet of things technology | |
| CN205178263U (en) | Laser trigger system based on optical fiber transmission | |
| CN202454490U (en) | Breaker for realizing on-line monitoring of vacuum degree of vacuum explosion chamber | |
| CN109031391A (en) | A kind of scintillator panel fluorescence optical fiber compound sensor | |
| CN103529318B (en) | A kind of instantaneous temperature of optical fiber composite low-voltage cable and loss test macro | |
| CN212159921U (en) | Transient overvoltage and overcurrent monitoring device | |
| CN105044482A (en) | Fiber electric-arc optical sensing device having temperature measurement function and measurement method of fiber electric-arc optical sensing device | |
| CN115360826B (en) | Intelligent power distribution terminal equipment | |
| CN102412090A (en) | Breaker for online monitoring of vacuum degree of vacuum arc extinguish chamber and monitoring method thereof | |
| JP2000304865A (en) | Optical transmission type radiation measuring device and its measuring system | |
| CN205789703U (en) | Vacuity of Vacuum Circuit Breakers on-line measuring device | |
| CN204144217U (en) | A kind of X frequency range arc detector | |
| CN210837628U (en) | Circuit breaker and position detection device of contact thereof | |
| CN209387161U (en) | A kind of temperature measurement on-line type breaker | |
| CN112994241A (en) | Wisdom power plant electrical equipment life cycle management system | |
| CN106848997A (en) | The protector and method of a kind of electron gun beam-control(led) system | |
| CN202693191U (en) | Distributed all-optical pressure sensor detection system applied to transformer substation | |
| CN113238086A (en) | GIS transient shell voltage on-line monitoring system based on optical voltage sensor | |
| CN112034316A (en) | Optical isolator for detecting partial discharge of oscillation wave and partial discharge detection device | |
| CN105609365B (en) | The method and its detection means of Vacuity of Vacuum Circuit Breakers on-line checking | |
| CN206019850U (en) | A kind of wireless temperature measuring device | |
| CN110673034A (en) | High-voltage motor monitoring system based on optical fiber power supply and wireless communication | |
| CN108562781A (en) | DC leakage-current test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |